14. In tomatoes, tall is dominant to short, and smooth fruits are dominant to hairy fruits. A plant homozygous for both dominant traits is crossed with a plant homozygous for both recessive traits. The F1 progeny are test- crossed, and the following results were observed: 88 tall, smooth fruits; 92 dwarf, hairy fruits; 12 tall, hairy fruits; and 8 dwarf, smooth fruits. These data indicate that the genes are:
a. on different chromosomes.
b. linked, but do not cross over.
c. linked and show 10% recombination.
d. linked and show 20% recombination.
e. linked and show 40% recombination.

Question

14.	In tomatoes, tall is dominant to short, and smooth fruits are dominant to hairy fruits. A plant homozygous for both dominant traits is crossed with a plant homozygous for both recessive traits. The F1 progeny are test- crossed, and the following results were observed: 88 tall, smooth fruits; 92 dwarf, hairy fruits; 12 tall, hairy fruits; and 8 dwarf, smooth fruits. These data indicate that the genes are:
a.	on different chromosomes. 
b.	linked, but do not cross over. 
c.	linked and show 10% recombination. 
d.	linked and show 20% recombination. 
e.	linked and show 40% recombination.

alphadxg · Answer

Take the recombinant type (non parental) divide by the total = % linked.